conf: make is_execute a boolean

src/lxc/conf.h

@@ -214,10 +214,10 @@ struct lxc_state_client {
 struct lxc_conf {
 	/* Pointer to the name of the container. Do not free! */
 	const char *name;
-	int is_execute;
 	char *fstab;
 	unsigned int tty;
 	unsigned int pts;
+	bool is_execute;
 	int reboot;
 	signed long personality;
 	struct utsname *utsname;

src/lxc/execute.c

@@ -152,7 +152,7 @@ int lxc_execute(const char *name, char *const argv[], int quiet,
 	struct execute_args args = {.argv = argv, .quiet = quiet};
 
 	TRACE("Doing lxc_execute");
-	handler->conf->is_execute = 1;
+	handler->conf->is_execute = true;
 	return __lxc_start(name, handler, &execute_start_ops, &args, lxcpath,
 			   backgrounded, error_num);
 }

src/lxc/start.c

@@ -1247,7 +1247,7 @@ static int do_start(void *data)
 	 * make sure that that pty is stdin,stdout,stderr.
 	 */
 	 if (handler->conf->console.slave >= 0) {
-		 if (handler->backgrounded || handler->conf->is_execute == 0)
+		 if (handler->backgrounded || !handler->conf->is_execute)
 			 ret = set_stdfds(handler->conf->console.slave);
 		 else
 			 ret = lxc_terminal_set_stdfds(handler->conf->console.slave);